7 possibly overvalued companies don't make a bubble. During the previous (actual) bubble there were many more companies with very high valuations and with 0 rev

7 possibly overvalued companies don't make a bubble. During the previous (actual) bubble there were many more companies with very high valuations and with 0 revenue. Facebook, Twitter, Groupon, LinkedIn, Skype and Color could go all go under. But it won't give people cold feet about investing in my over-hyped, eyeball dependent, Web 2.0, social, video sharing, pet-orientated, gamified, Groupon clone. Why? Because I'm not building this business and neither is anyone else.